millionaire

noun

mil·​lion·​aire ˌmi(l)-yə-ˈner How to pronounce millionaire (audio)
ˈmi(l)-yə-ˌner
Synonyms of millionairenext
: a person whose wealth is estimated at a million or more (as of dollars or pounds)

Examples of millionaire in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Those offerings could mint a number of fresh billionaires and scores of millionaires. — Ashley Capoot, CNBC, 29 Aug. 2026 Giannoulias acknowledged that his path to balancing the budget requires new revenue that would need to go through Springfield, such as a 3% tax on millionaires. — Alice Yin, Chicago Tribune, 27 Aug. 2026 There’s always been an entrepreneurial vein in America, Shaw allows, and the default has been becoming a tech millionaire (or more). — Nick Lichtenberg, Fortune, 23 Aug. 2026 And the opponents of the Massachusetts millionaire tax used economic theory to predict exactly that. — Teresa Ghilarducci, Forbes.com, 23 Aug. 2026 See All Example Sentences for millionaire

Word History

Etymology

French millionnaire, from million, from Middle French milion

First Known Use

1786, in the meaning defined above

Time Traveler
The first known use of millionaire was in 1786

Phrases Containing millionaire

Rhymes for millionaire

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Browse Nearby Words

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millionaire
millionairedom
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Cite this Entry

“Millionaire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millionaire. Accessed 1 Sep. 2026.

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Kids Definition

millionaire

noun
mil·​lion·​aire ˌmil-yə-ˈna(ə)r How to pronounce millionaire (audio)
-ˈne(ə)r, 
ˈmil-yə-ˌna(ə)r, 
-ˌne(ə)r
: one whose wealth is estimated at a million or more (as of dollars)

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